/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Injectable } from '@angular/core';
import {ActivatedRouteSnapshot} from '@angular/router';

@Injectable()
export class RoutingUtilsService {

  constructor() { }

  getParamFromActivatedRouteSnapshot(routeSnapshot: ActivatedRouteSnapshot, key: string) {
    const params = routeSnapshot.params;
    return params && params[key] !== undefined ? routeSnapshot.params[key] : (
      routeSnapshot.firstChild && this.getParamFromActivatedRouteSnapshot(routeSnapshot.firstChild, key)
    );
  }

  getDataFromActivatedRouteSnapshot(routeSnapshot: ActivatedRouteSnapshot, key: string) {
    const data = routeSnapshot && routeSnapshot.data;
    return data && data[key] !== undefined ? routeSnapshot.data[key] : (
      routeSnapshot.firstChild && this.getDataFromActivatedRouteSnapshot(routeSnapshot.firstChild, key)
    );
  }

}
